New model of lumbar spine biomechanics with the use of simulation analysis Łukasz Kubaszewski, Mikołaj Dąbrowski, Krzysztof Talaśka and Dominik Wilczyński MATEC Web Conf., 254 (2019) 02031 Published online: 15 January 2019 DOI: 10.1051/matecconf/201925402031